package com.security.test.redis;

import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.nio.charset.Charset;

@Configuration
@EnableCaching
@AutoConfigureBefore(RedisAutoConfiguration.class)
public class RedisConfig extends CachingConfigurerSupport {
    @Bean
    @SuppressWarnings(value = {"all"})
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);

        FastJson2JsonRedisSerializer serializer = new FastJson2JsonRedisSerializer(Object.class);

        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(serializer);

        // Hash的key也采用StringRedisSerializer的序列化方式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(serializer);

        template.afterPropertiesSet();
        return template;
    }

    /**
     * 使用utf-8编码格式获取redis中的string数据
     */
    @Bean(name = {"stringUtf8RedisTemplate", "stringRedisTemplate"})
    @SuppressWarnings(value = {"all"})
    public StringRedisTemplate stringUtf8RedisTemplate(RedisConnectionFactory redisConnectionFactory) {
        StringRedisTemplate template = new StringRedisTemplate();
        RedisSerializer<String> stringSerializer = new StringRedisSerializer(Charset.forName("UTF-8"));
        template.setConnectionFactory(redisConnectionFactory);
        template.setKeySerializer(stringSerializer);
        template.setValueSerializer(stringSerializer);
        template.setHashKeySerializer(stringSerializer);
        template.setHashValueSerializer(stringSerializer);
        return template;
    }

    /**
     * 非必要勿用，使用gbk编码格式获取redis中的string数据，这样中文不会出现乱码情况
     */
    @Bean("stringGbkRedisTemplate")
    @SuppressWarnings(value = {"all"})
    public StringRedisTemplate stringGbkRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
        StringRedisTemplate template = new StringRedisTemplate();
        RedisSerializer<String> stringSerializer = new StringRedisSerializer(Charset.forName("GBK"));
        template.setConnectionFactory(redisConnectionFactory);
        template.setKeySerializer(stringSerializer);
        template.setValueSerializer(stringSerializer);
        template.setHashKeySerializer(stringSerializer);
        template.setHashValueSerializer(stringSerializer);
        return template;
    }
}

